зеркало из https://github.com/mozilla/gecko-dev.git
Bug 637852. Part 13: Allow snapping of text baselines to occur when there's a scale in the current transform. r=tnikkel
This allows baselines to be snapped properly when drawing into high-resolution ThebesLayers.
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08cb8f63ce
Коммит
c37c544c23
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@ -5131,7 +5131,7 @@ nsTextFrame::GetSnappedBaselineY(gfxContext* aContext, gfxFloat aY)
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gfxFloat appUnitsPerDevUnit = mTextRun->GetAppUnitsPerDevUnit();
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gfxFloat baseline = aY + mAscent;
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gfxRect putativeRect(0, baseline/appUnitsPerDevUnit, 1, 1);
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if (!aContext->UserToDevicePixelSnapped(putativeRect))
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if (!aContext->UserToDevicePixelSnapped(putativeRect, PR_TRUE))
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return baseline;
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return aContext->DeviceToUser(putativeRect.TopLeft()).y*appUnitsPerDevUnit;
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}
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@ -0,0 +1,16 @@
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body { margin-top:101px; }
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.outer {
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-moz-transform:scale(1.4);
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-moz-transform-origin:top left;
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line-height:40px;
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}
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</style>
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</head>
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<body>
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<div class="outer"><div class="inner">Hello Kitty</div></div>
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</body>
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</html>
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@ -0,0 +1,16 @@
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body { margin-top:100.9px; }
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.outer {
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-moz-transform:scale(1.4);
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-moz-transform-origin:top left;
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line-height:40px;
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}
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</style>
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</head>
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<body>
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<div class="outer"><div class="inner">Hello Kitty</div></div>
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</body>
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</html>
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@ -1629,6 +1629,7 @@ fails-if(Android) == 635302-1.html 635302-1-ref.html
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fails-if(http.platform=="X11"&&!layersGPUAccelerated) == 635373-3.html 635373-3-ref.html
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HTTP(..) == 635639-1.html 635639-1-ref.html
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HTTP(..) == 635639-2.html 635639-2-ref.html
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== 637852-1.html 637852-1-ref.html
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== 641770-1.html 641770-1-ref.html
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== 641856-1.html 641856-1-ref.html
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== 645491-1.html 645491-1-ref.html
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